Gas-regulator



(No Mode-1.)

Z UIOKER. GAS REGULATOR.

No. 355,678, Patented Jan. 4, 1858.7,

TVJTJVESSES I i I I UNITED STATES PATENT FFICE,

MAURICE ZUOKER, OF CLEVELAND, OHIO.

GAS- REGU LATO R.

SPECIFICATION forming part of Letters Patent No. 355,673, dated January 4, 1887 Application filed September 16, 1886. Serial No. "213,701. (No model.)

To all whom it may concern.-

Be it known that I, MAURICE ZUOKER, a citizen of the United States of America, residing at Cleveland, in the county of Ouyalioga and State of Ohio, have invented certain new and ful improvements in gas-regulators, the object I of the same being to provide a means for preventing the noxious odors of the gas escaping from the regulator; and to this end my inven-- tion consists in providing the regulator above its diaphragm with a supplemental'diaphragm of impervious material, said diaphragms being free from contact with each other, except at the edges; also, in providing a regulator having such an impervious diaphragmwith an inwardly-curved flange, as will be hereinafter fully set forth, and specifically pointed out in the claims.

In the accompanying drawings I have shown my invention applied to agas-regulator of ordinary construction, such a gas-regulator being shown in Figure 1 of the drawings. Fig. 2 of the drawings is a sectional view taken through which is preferably made of cast metal, a being a coupling, to which the gas-supply pipe is attached. The casing of the regulator above the supply-couplingjs provided with avalveseat, 12, under which the valve B will operate, so as to cut off or increase the supply-opening, which valve is operated automatically by pressure of the gas.

0 refers to the discharge-opening, through which the gas passes to the burners. The body portion of the regulator is preferably made in two parts, which are secured to each other by bolts 0, the upper portion of the regulator having an opening therein, so that access can be had to the valve-stem for attaching weights thereto. The engaging parts of this opening and cap may be threaded; or the opening may be provided at opposite sides with vertical grooves, to admit of the passage of projection cl on the lower rim of the cap-flange; or the parts may be arranged in any other usual or preferred manner, so long as the cap is adapted to be secured over the opening and to be removed, if necessary.

In practice it has been found that the removable cover D, at the point where it is attached to the casing, is liable to leakage, and that the gas, after the regulator has been in use for some time,will pass through the diaphragm E and escape throughthe opening in the upper portion of the regulator. To obviate this objection, I attach above the diaphragm E a supplemental diaphragm, F, which is cent-rally secured to the valve-stem e at a distance above the point of attachment of diaphragm E in any suitable manner, so as to form a tight joint, nuts located one above the other, between which the diaphragm is secured, being a preferred form of securing the parts to each other, The diaphragm F is preferablymade of impervious material-such as rubber, cloth, or other textile fabric-through which the gas cannot pass, and which will remain at all times pliable.

Immediately above the diaphragm E is secured a circular metal flange having a central opening and inwardly-curved edges, as shown at G, thus providing a curved ring or collar,

against which the diaphragm F will contact and find support when distended by pressure of gas, as shown by dotted lines in Fig. 2. Without such a supporting-ring the upper diaphragm would be liable to break or leak, especially after long use and when the diaphragm becomes saturated with the impurities contained in the gas.

By means of my improvement gas-regulators can be constructed so that there will be absolutely no leakage, and What gas may leak through the first diaphragm will be caught and held by the supplemental diaphragm, and as soon as the pressure is reduced will flow back through the diaphragm E to the exitopening of the regulator.

I claim 1. In a gas-regulator, the combination, with the casing, the valve-stem, and the main diaor collar, G, located above the supplemental phragm secured at its edges to the casing and diaphragm, and provided with an inwardly- 15 at its center to the stem, of a supplemental diacurved rim to support said supplemental diaphragm having its edges secured upon the phragm when distended by gas-pressure, sub- 5 edges of the main diaphragm, and at the center stantially as shown, and for the purpose set connected adjustably to the valve-stem at a forth. distance above the main diaphragm by inde- In testimony whereof I afliX my signature in 20 pendent connecting devices, substantially as presence of two witnesses. described' MAURICE ZUOKER J to 2. .In combination with a gasregulator having inlet-supply openings, a valve attached Witnesses: to a diaphragm, E, and supplemental dia- PETER ZUOKER, phragm F, secured above the same, and a flange CHARLES ZUOKER. 

